media: ov5640: Add Omnivision OV5640 support
[linux-2.6.git] / drivers / video / ps3fb.c
1 /*
2  *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
3  *
4  *      Copyright (C) 2006 Sony Computer Entertainment Inc.
5  *      Copyright 2006, 2007 Sony Corporation
6  *
7  *  This file is based on :
8  *
9  *  linux/drivers/video/vfb.c -- Virtual frame buffer device
10  *
11  *      Copyright (C) 2002 James Simmons
12  *
13  *      Copyright (C) 1997 Geert Uytterhoeven
14  *
15  *  This file is subject to the terms and conditions of the GNU General Public
16  *  License. See the file COPYING in the main directory of this archive for
17  *  more details.
18  */
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/string.h>
24 #include <linux/mm.h>
25 #include <linux/interrupt.h>
26 #include <linux/console.h>
27 #include <linux/ioctl.h>
28 #include <linux/kthread.h>
29 #include <linux/freezer.h>
30 #include <linux/uaccess.h>
31 #include <linux/fb.h>
32 #include <linux/init.h>
33
34 #include <asm/abs_addr.h>
35 #include <asm/cell-regs.h>
36 #include <asm/lv1call.h>
37 #include <asm/ps3av.h>
38 #include <asm/ps3fb.h>
39 #include <asm/ps3.h>
40 #include <asm/ps3gpu.h>
41
42
43 #define DEVICE_NAME             "ps3fb"
44
45 #define GPU_CMD_BUF_SIZE                        (2 * 1024 * 1024)
46 #define GPU_FB_START                            (64 * 1024)
47 #define GPU_IOIF                                (0x0d000000UL)
48 #define GPU_ALIGN_UP(x)                         _ALIGN_UP((x), 64)
49 #define GPU_MAX_LINE_LENGTH                     (65536 - 64)
50
51 #define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
52 #define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
53 #define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
54 #define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
55 #define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
56 #define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
57
58 #define GPU_DRIVER_INFO_VERSION                 0x211
59
60 /* gpu internals */
61 struct display_head {
62         u64 be_time_stamp;
63         u32 status;
64         u32 offset;
65         u32 res1;
66         u32 res2;
67         u32 field;
68         u32 reserved1;
69
70         u64 res3;
71         u32 raster;
72
73         u64 vblank_count;
74         u32 field_vsync;
75         u32 reserved2;
76 };
77
78 struct gpu_irq {
79         u32 irq_outlet;
80         u32 status;
81         u32 mask;
82         u32 video_cause;
83         u32 graph_cause;
84         u32 user_cause;
85
86         u32 res1;
87         u64 res2;
88
89         u32 reserved[4];
90 };
91
92 struct gpu_driver_info {
93         u32 version_driver;
94         u32 version_gpu;
95         u32 memory_size;
96         u32 hardware_channel;
97
98         u32 nvcore_frequency;
99         u32 memory_frequency;
100
101         u32 reserved[1063];
102         struct display_head display_head[8];
103         struct gpu_irq irq;
104 };
105
106 struct ps3fb_priv {
107         unsigned int irq_no;
108
109         u64 context_handle, memory_handle;
110         struct gpu_driver_info *dinfo;
111
112         u64 vblank_count;       /* frame count */
113         wait_queue_head_t wait_vsync;
114
115         atomic_t ext_flip;      /* on/off flip with vsync */
116         atomic_t f_count;       /* fb_open count */
117         int is_blanked;
118         int is_kicked;
119         struct task_struct *task;
120 };
121 static struct ps3fb_priv ps3fb;
122
123 struct ps3fb_par {
124         u32 pseudo_palette[16];
125         int mode_id, new_mode_id;
126         unsigned int num_frames;        /* num of frame buffers */
127         unsigned int width;
128         unsigned int height;
129         unsigned int ddr_line_length;
130         unsigned int ddr_frame_size;
131         unsigned int xdr_frame_size;
132         unsigned int full_offset;       /* start of fullscreen DDR fb */
133         unsigned int fb_offset;         /* start of actual DDR fb */
134         unsigned int pan_offset;
135 };
136
137
138 #define FIRST_NATIVE_MODE_INDEX 10
139
140 static const struct fb_videomode ps3fb_modedb[] = {
141     /* 60 Hz broadcast modes (modes "1" to "5") */
142     {
143         /* 480i */
144         "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
145         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
146     },    {
147         /* 480p */
148         "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
149         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
150     },    {
151         /* 720p */
152         "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
153         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
154     },    {
155         /* 1080i */
156         "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
157         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
158     },    {
159         /* 1080p */
160         "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
161         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
162     },
163
164     /* 50 Hz broadcast modes (modes "6" to "10") */
165     {
166         /* 576i */
167         "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
168         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
169     },    {
170         /* 576p */
171         "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
172         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
173     },    {
174         /* 720p */
175         "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
176         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
177     },    {
178         /* 1080i */
179         "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
180         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
181     },    {
182         /* 1080p */
183         "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
184         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
185     },
186
187     [FIRST_NATIVE_MODE_INDEX] =
188     /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
189     {
190         /* 480if */
191         "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
192         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
193     }, {
194         /* 480pf */
195         "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
196         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
197     }, {
198         /* 720pf */
199         "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
200         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
201     }, {
202         /* 1080if */
203         "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
204         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
205     }, {
206         /* 1080pf */
207         "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
208         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
209     },
210
211     /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
212     {
213         /* 576if */
214         "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
215         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
216     }, {
217         /* 576pf */
218         "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
219         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
220     }, {
221         /* 720pf */
222         "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
223         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
224     }, {
225         /* 1080if */
226         "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
227         FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
228     }, {
229         /* 1080pf */
230         "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
231         FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
232     },
233
234     /* VESA modes (modes "11" to "13") */
235     {
236         /* WXGA */
237         "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
238         0, FB_VMODE_NONINTERLACED,
239         FB_MODE_IS_VESA
240     }, {
241         /* SXGA */
242         "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
243         FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
244         FB_MODE_IS_VESA
245     }, {
246         /* WUXGA */
247         "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
248         FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
249         FB_MODE_IS_VESA
250     }
251 };
252
253
254 #define HEAD_A
255 #define HEAD_B
256
257 #define BPP             4                       /* number of bytes per pixel */
258
259
260 static int ps3fb_mode;
261 module_param(ps3fb_mode, int, 0);
262
263 static char *mode_option __devinitdata;
264
265 static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
266                           const struct fb_var_screeninfo *var)
267 {
268         long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
269         long dx, dy;
270
271         /* maximum values */
272         if (var->xres > vmode->xres || var->yres > vmode->yres ||
273             var->pixclock > vmode->pixclock ||
274             var->hsync_len > vmode->hsync_len ||
275             var->vsync_len > vmode->vsync_len)
276                 return -1;
277
278         /* progressive/interlaced must match */
279         if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
280                 return -1;
281
282         /* minimum resolution */
283         xres = max(var->xres, 1U);
284         yres = max(var->yres, 1U);
285
286         /* minimum margins */
287         left_margin = max(var->left_margin, vmode->left_margin);
288         right_margin = max(var->right_margin, vmode->right_margin);
289         upper_margin = max(var->upper_margin, vmode->upper_margin);
290         lower_margin = max(var->lower_margin, vmode->lower_margin);
291
292         /* resolution + margins may not exceed native parameters */
293         dx = ((long)vmode->left_margin + (long)vmode->xres +
294               (long)vmode->right_margin) -
295              (left_margin + xres + right_margin);
296         if (dx < 0)
297                 return -1;
298
299         dy = ((long)vmode->upper_margin + (long)vmode->yres +
300               (long)vmode->lower_margin) -
301              (upper_margin + yres + lower_margin);
302         if (dy < 0)
303                 return -1;
304
305         /* exact match */
306         if (!dx && !dy)
307                 return 0;
308
309         /* resolution difference */
310         return (vmode->xres - xres) * (vmode->yres - yres);
311 }
312
313 static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
314 {
315         return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
316 }
317
318 static const struct fb_videomode *ps3fb_vmode(int id)
319 {
320         u32 mode = id & PS3AV_MODE_MASK;
321
322         if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
323                 return NULL;
324
325         if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
326                 /* Non-fullscreen broadcast mode */
327                 return &ps3fb_modedb[mode - 1];
328         }
329
330         return ps3fb_native_vmode(mode);
331 }
332
333 static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
334                                     u32 *ddr_line_length, u32 *xdr_line_length)
335 {
336         unsigned int id, best_id;
337         int diff, best_diff;
338         const struct fb_videomode *vmode;
339         long gap;
340
341         best_id = 0;
342         best_diff = INT_MAX;
343         pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
344                  var->left_margin, var->xres, var->right_margin,
345                  var->upper_margin, var->yres, var->lower_margin);
346         for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
347                 vmode = ps3fb_native_vmode(id);
348                 diff = ps3fb_cmp_mode(vmode, var);
349                 pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
350                          __func__, id, vmode->left_margin, vmode->xres,
351                          vmode->right_margin, vmode->upper_margin,
352                          vmode->yres, vmode->lower_margin, diff);
353                 if (diff < 0)
354                         continue;
355                 if (diff < best_diff) {
356                         best_id = id;
357                         if (!diff)
358                                 break;
359                         best_diff = diff;
360                 }
361         }
362
363         if (!best_id) {
364                 pr_debug("%s: no suitable mode found\n", __func__);
365                 return 0;
366         }
367
368         id = best_id;
369         vmode = ps3fb_native_vmode(id);
370
371         *ddr_line_length = vmode->xres * BPP;
372
373         /* minimum resolution */
374         if (!var->xres)
375                 var->xres = 1;
376         if (!var->yres)
377                 var->yres = 1;
378
379         /* minimum virtual resolution */
380         if (var->xres_virtual < var->xres)
381                 var->xres_virtual = var->xres;
382         if (var->yres_virtual < var->yres)
383                 var->yres_virtual = var->yres;
384
385         /* minimum margins */
386         if (var->left_margin < vmode->left_margin)
387                 var->left_margin = vmode->left_margin;
388         if (var->right_margin < vmode->right_margin)
389                 var->right_margin = vmode->right_margin;
390         if (var->upper_margin < vmode->upper_margin)
391                 var->upper_margin = vmode->upper_margin;
392         if (var->lower_margin < vmode->lower_margin)
393                 var->lower_margin = vmode->lower_margin;
394
395         /* extra margins */
396         gap = ((long)vmode->left_margin + (long)vmode->xres +
397                (long)vmode->right_margin) -
398               ((long)var->left_margin + (long)var->xres +
399                (long)var->right_margin);
400         if (gap > 0) {
401                 var->left_margin += gap/2;
402                 var->right_margin += (gap+1)/2;
403                 pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
404                          var->left_margin, var->xres, var->right_margin);
405         }
406
407         gap = ((long)vmode->upper_margin + (long)vmode->yres +
408                (long)vmode->lower_margin) -
409               ((long)var->upper_margin + (long)var->yres +
410                (long)var->lower_margin);
411         if (gap > 0) {
412                 var->upper_margin += gap/2;
413                 var->lower_margin += (gap+1)/2;
414                 pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
415                          var->upper_margin, var->yres, var->lower_margin);
416         }
417
418         /* fixed fields */
419         var->pixclock = vmode->pixclock;
420         var->hsync_len = vmode->hsync_len;
421         var->vsync_len = vmode->vsync_len;
422         var->sync = vmode->sync;
423
424         if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
425                 *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
426                 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
427                         *xdr_line_length = GPU_MAX_LINE_LENGTH;
428         } else
429                 *xdr_line_length = *ddr_line_length;
430
431         if (vmode->sync & FB_SYNC_BROADCAST) {
432                 /* Full broadcast modes have the full mode bit set */
433                 if (vmode->xres == var->xres && vmode->yres == var->yres)
434                         id |= PS3AV_MODE_FULL;
435         }
436
437         pr_debug("%s: mode %u\n", __func__, id);
438         return id;
439 }
440
441 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
442                              u64 dst_offset, u64 src_offset, u32 width,
443                              u32 height, u32 dst_line_length,
444                              u32 src_line_length)
445 {
446         int status;
447         u64 line_length;
448
449         line_length = dst_line_length;
450         if (src_line_length != dst_line_length)
451                 line_length |= (u64)src_line_length << 32;
452
453         src_offset += GPU_FB_START;
454
455         mutex_lock(&ps3_gpu_mutex);
456         status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
457                                  GPU_IOIF + src_offset,
458                                  L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
459                                  (width << 16) | height,
460                                  line_length);
461         mutex_unlock(&ps3_gpu_mutex);
462
463         if (status)
464                 dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
465                         status);
466 #ifdef HEAD_A
467         status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
468         if (status)
469                 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
470                         status);
471 #endif
472 #ifdef HEAD_B
473         status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
474         if (status)
475                 dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
476                         status);
477 #endif
478 }
479
480 static int ps3fb_sync(struct fb_info *info, u32 frame)
481 {
482         struct ps3fb_par *par = info->par;
483         int error = 0;
484         u64 ddr_base, xdr_base;
485
486         if (frame > par->num_frames - 1) {
487                 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
488                         __func__, frame);
489                 error = -EINVAL;
490                 goto out;
491         }
492
493         xdr_base = frame * par->xdr_frame_size;
494         ddr_base = frame * par->ddr_frame_size;
495
496         ps3fb_sync_image(info->device, ddr_base + par->full_offset,
497                          ddr_base + par->fb_offset, xdr_base + par->pan_offset,
498                          par->width, par->height, par->ddr_line_length,
499                          info->fix.line_length);
500
501 out:
502         return error;
503 }
504
505 static int ps3fb_open(struct fb_info *info, int user)
506 {
507         atomic_inc(&ps3fb.f_count);
508         return 0;
509 }
510
511 static int ps3fb_release(struct fb_info *info, int user)
512 {
513         if (atomic_dec_and_test(&ps3fb.f_count)) {
514                 if (atomic_read(&ps3fb.ext_flip)) {
515                         atomic_set(&ps3fb.ext_flip, 0);
516                         if (console_trylock()) {
517                                 ps3fb_sync(info, 0);    /* single buffer */
518                                 console_unlock();
519                         }
520                 }
521         }
522         return 0;
523 }
524
525     /*
526      *  Setting the video mode has been split into two parts.
527      *  First part, xxxfb_check_var, must not write anything
528      *  to hardware, it should only verify and adjust var.
529      *  This means it doesn't alter par but it does use hardware
530      *  data from it to check this var.
531      */
532
533 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
534 {
535         u32 xdr_line_length, ddr_line_length;
536         int mode;
537
538         mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
539         if (!mode)
540                 return -EINVAL;
541
542         /* Virtual screen */
543         if (var->xres_virtual > xdr_line_length / BPP) {
544                 dev_dbg(info->device,
545                         "Horizontal virtual screen size too large\n");
546                 return -EINVAL;
547         }
548
549         if (var->xoffset + var->xres > var->xres_virtual ||
550             var->yoffset + var->yres > var->yres_virtual) {
551                 dev_dbg(info->device, "panning out-of-range\n");
552                 return -EINVAL;
553         }
554
555         /* We support ARGB8888 only */
556         if (var->bits_per_pixel > 32 || var->grayscale ||
557             var->red.offset > 16 || var->green.offset > 8 ||
558             var->blue.offset > 0 || var->transp.offset > 24 ||
559             var->red.length > 8 || var->green.length > 8 ||
560             var->blue.length > 8 || var->transp.length > 8 ||
561             var->red.msb_right || var->green.msb_right ||
562             var->blue.msb_right || var->transp.msb_right || var->nonstd) {
563                 dev_dbg(info->device, "We support ARGB8888 only\n");
564                 return -EINVAL;
565         }
566
567         var->bits_per_pixel = 32;
568         var->red.offset = 16;
569         var->green.offset = 8;
570         var->blue.offset = 0;
571         var->transp.offset = 24;
572         var->red.length = 8;
573         var->green.length = 8;
574         var->blue.length = 8;
575         var->transp.length = 8;
576         var->red.msb_right = 0;
577         var->green.msb_right = 0;
578         var->blue.msb_right = 0;
579         var->transp.msb_right = 0;
580
581         /* Rotation is not supported */
582         if (var->rotate) {
583                 dev_dbg(info->device, "Rotation is not supported\n");
584                 return -EINVAL;
585         }
586
587         /* Memory limit */
588         if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
589                 dev_dbg(info->device, "Not enough memory\n");
590                 return -ENOMEM;
591         }
592
593         var->height = -1;
594         var->width = -1;
595
596         return 0;
597 }
598
599     /*
600      * This routine actually sets the video mode.
601      */
602
603 static int ps3fb_set_par(struct fb_info *info)
604 {
605         struct ps3fb_par *par = info->par;
606         unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
607         unsigned int ddr_xoff, ddr_yoff, offset;
608         const struct fb_videomode *vmode;
609         u64 dst;
610
611         mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
612         if (!mode)
613                 return -EINVAL;
614
615         vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);
616
617         info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
618         info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
619         info->fix.line_length = xdr_line_length;
620
621         par->ddr_line_length = ddr_line_length;
622         par->ddr_frame_size = vmode->yres * ddr_line_length;
623         par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
624
625         par->num_frames = info->fix.smem_len /
626                           max(par->ddr_frame_size, par->xdr_frame_size);
627
628         /* Keep the special bits we cannot set using fb_var_screeninfo */
629         par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
630
631         par->width = info->var.xres;
632         par->height = info->var.yres;
633
634         /* Start of the virtual frame buffer (relative to fullscreen) */
635         ddr_xoff = info->var.left_margin - vmode->left_margin;
636         ddr_yoff = info->var.upper_margin - vmode->upper_margin;
637         offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
638
639         par->fb_offset = GPU_ALIGN_UP(offset);
640         par->full_offset = par->fb_offset - offset;
641         par->pan_offset = info->var.yoffset * xdr_line_length +
642                           info->var.xoffset * BPP;
643
644         if (par->new_mode_id != par->mode_id) {
645                 if (ps3av_set_video_mode(par->new_mode_id)) {
646                         par->new_mode_id = par->mode_id;
647                         return -EINVAL;
648                 }
649                 par->mode_id = par->new_mode_id;
650         }
651
652         /* Clear XDR frame buffer memory */
653         memset((void __force *)info->screen_base, 0, info->fix.smem_len);
654
655         /* Clear DDR frame buffer memory */
656         lines = vmode->yres * par->num_frames;
657         if (par->full_offset)
658                 lines++;
659         maxlines = info->fix.smem_len / ddr_line_length;
660         for (dst = 0; lines; dst += maxlines * ddr_line_length) {
661                 unsigned int l = min(lines, maxlines);
662                 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
663                                  ddr_line_length, ddr_line_length);
664                 lines -= l;
665         }
666
667         return 0;
668 }
669
670     /*
671      *  Set a single color register. The values supplied are already
672      *  rounded down to the hardware's capabilities (according to the
673      *  entries in the var structure). Return != 0 for invalid regno.
674      */
675
676 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
677                            unsigned int green, unsigned int blue,
678                            unsigned int transp, struct fb_info *info)
679 {
680         if (regno >= 16)
681                 return 1;
682
683         red >>= 8;
684         green >>= 8;
685         blue >>= 8;
686         transp >>= 8;
687
688         ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
689                                                green << 8 | blue;
690         return 0;
691 }
692
693 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
694                              struct fb_info *info)
695 {
696         struct ps3fb_par *par = info->par;
697
698         par->pan_offset = var->yoffset * info->fix.line_length +
699                           var->xoffset * BPP;
700         return 0;
701 }
702
703     /*
704      *  As we have a virtual frame buffer, we need our own mmap function
705      */
706
707 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
708 {
709         unsigned long size, offset;
710
711         size = vma->vm_end - vma->vm_start;
712         offset = vma->vm_pgoff << PAGE_SHIFT;
713         if (offset + size > info->fix.smem_len)
714                 return -EINVAL;
715
716         offset += info->fix.smem_start;
717         if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
718                             size, vma->vm_page_prot))
719                 return -EAGAIN;
720
721         dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
722                 offset, vma->vm_start);
723         return 0;
724 }
725
726     /*
727      * Blank the display
728      */
729
730 static int ps3fb_blank(int blank, struct fb_info *info)
731 {
732         int retval;
733
734         dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
735         switch (blank) {
736         case FB_BLANK_POWERDOWN:
737         case FB_BLANK_HSYNC_SUSPEND:
738         case FB_BLANK_VSYNC_SUSPEND:
739         case FB_BLANK_NORMAL:
740                 retval = ps3av_video_mute(1);   /* mute on */
741                 if (!retval)
742                         ps3fb.is_blanked = 1;
743                 break;
744
745         default:                /* unblank */
746                 retval = ps3av_video_mute(0);   /* mute off */
747                 if (!retval)
748                         ps3fb.is_blanked = 0;
749                 break;
750         }
751         return retval;
752 }
753
754 static int ps3fb_get_vblank(struct fb_vblank *vblank)
755 {
756         memset(vblank, 0, sizeof(*vblank));
757         vblank->flags = FB_VBLANK_HAVE_VSYNC;
758         return 0;
759 }
760
761 static int ps3fb_wait_for_vsync(u32 crtc)
762 {
763         int ret;
764         u64 count;
765
766         count = ps3fb.vblank_count;
767         ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
768                                                count != ps3fb.vblank_count,
769                                                HZ / 10);
770         if (!ret)
771                 return -ETIMEDOUT;
772
773         return 0;
774 }
775
776
777     /*
778      * ioctl
779      */
780
781 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
782                        unsigned long arg)
783 {
784         void __user *argp = (void __user *)arg;
785         u32 val;
786         int retval = -EFAULT;
787
788         switch (cmd) {
789         case FBIOGET_VBLANK:
790                 {
791                         struct fb_vblank vblank;
792                         dev_dbg(info->device, "FBIOGET_VBLANK:\n");
793                         retval = ps3fb_get_vblank(&vblank);
794                         if (retval)
795                                 break;
796
797                         if (copy_to_user(argp, &vblank, sizeof(vblank)))
798                                 retval = -EFAULT;
799                         break;
800                 }
801
802         case FBIO_WAITFORVSYNC:
803                 {
804                         u32 crt;
805                         dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
806                         if (get_user(crt, (u32 __user *) arg))
807                                 break;
808
809                         retval = ps3fb_wait_for_vsync(crt);
810                         break;
811                 }
812
813         case PS3FB_IOCTL_SETMODE:
814                 {
815                         struct ps3fb_par *par = info->par;
816                         const struct fb_videomode *vmode;
817                         struct fb_var_screeninfo var;
818
819                         if (copy_from_user(&val, argp, sizeof(val)))
820                                 break;
821
822                         if (!(val & PS3AV_MODE_MASK)) {
823                                 u32 id = ps3av_get_auto_mode();
824                                 if (id > 0)
825                                         val = (val & ~PS3AV_MODE_MASK) | id;
826                         }
827                         dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
828                         retval = -EINVAL;
829                         vmode = ps3fb_vmode(val);
830                         if (vmode) {
831                                 var = info->var;
832                                 fb_videomode_to_var(&var, vmode);
833                                 console_lock();
834                                 info->flags |= FBINFO_MISC_USEREVENT;
835                                 /* Force, in case only special bits changed */
836                                 var.activate |= FB_ACTIVATE_FORCE;
837                                 par->new_mode_id = val;
838                                 retval = fb_set_var(info, &var);
839                                 info->flags &= ~FBINFO_MISC_USEREVENT;
840                                 console_unlock();
841                         }
842                         break;
843                 }
844
845         case PS3FB_IOCTL_GETMODE:
846                 val = ps3av_get_mode();
847                 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
848                 if (!copy_to_user(argp, &val, sizeof(val)))
849                         retval = 0;
850                 break;
851
852         case PS3FB_IOCTL_SCREENINFO:
853                 {
854                         struct ps3fb_par *par = info->par;
855                         struct ps3fb_ioctl_res res;
856                         dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
857                         res.xres = info->fix.line_length / BPP;
858                         res.yres = info->var.yres_virtual;
859                         res.xoff = (res.xres - info->var.xres) / 2;
860                         res.yoff = (res.yres - info->var.yres) / 2;
861                         res.num_frames = par->num_frames;
862                         if (!copy_to_user(argp, &res, sizeof(res)))
863                                 retval = 0;
864                         break;
865                 }
866
867         case PS3FB_IOCTL_ON:
868                 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
869                 atomic_inc(&ps3fb.ext_flip);
870                 retval = 0;
871                 break;
872
873         case PS3FB_IOCTL_OFF:
874                 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
875                 atomic_dec_if_positive(&ps3fb.ext_flip);
876                 retval = 0;
877                 break;
878
879         case PS3FB_IOCTL_FSEL:
880                 if (copy_from_user(&val, argp, sizeof(val)))
881                         break;
882
883                 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
884                 console_lock();
885                 retval = ps3fb_sync(info, val);
886                 console_unlock();
887                 break;
888
889         default:
890                 retval = -ENOIOCTLCMD;
891                 break;
892         }
893         return retval;
894 }
895
896 static int ps3fbd(void *arg)
897 {
898         struct fb_info *info = arg;
899
900         set_freezable();
901         while (!kthread_should_stop()) {
902                 try_to_freeze();
903                 set_current_state(TASK_INTERRUPTIBLE);
904                 if (ps3fb.is_kicked) {
905                         ps3fb.is_kicked = 0;
906                         console_lock();
907                         ps3fb_sync(info, 0);    /* single buffer */
908                         console_unlock();
909                 }
910                 schedule();
911         }
912         return 0;
913 }
914
915 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
916 {
917         struct device *dev = ptr;
918         u64 v1;
919         int status;
920         struct display_head *head = &ps3fb.dinfo->display_head[1];
921
922         status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
923         if (status) {
924                 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
925                         status);
926                 return IRQ_NONE;
927         }
928
929         if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
930                 /* VSYNC */
931                 ps3fb.vblank_count = head->vblank_count;
932                 if (ps3fb.task && !ps3fb.is_blanked &&
933                     !atomic_read(&ps3fb.ext_flip)) {
934                         ps3fb.is_kicked = 1;
935                         wake_up_process(ps3fb.task);
936                 }
937                 wake_up_interruptible(&ps3fb.wait_vsync);
938         }
939
940         return IRQ_HANDLED;
941 }
942
943
944 static struct fb_ops ps3fb_ops = {
945         .fb_open        = ps3fb_open,
946         .fb_release     = ps3fb_release,
947         .fb_read        = fb_sys_read,
948         .fb_write       = fb_sys_write,
949         .fb_check_var   = ps3fb_check_var,
950         .fb_set_par     = ps3fb_set_par,
951         .fb_setcolreg   = ps3fb_setcolreg,
952         .fb_pan_display = ps3fb_pan_display,
953         .fb_fillrect    = sys_fillrect,
954         .fb_copyarea    = sys_copyarea,
955         .fb_imageblit   = sys_imageblit,
956         .fb_mmap        = ps3fb_mmap,
957         .fb_blank       = ps3fb_blank,
958         .fb_ioctl       = ps3fb_ioctl,
959         .fb_compat_ioctl = ps3fb_ioctl
960 };
961
962 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
963         .id =           DEVICE_NAME,
964         .type =         FB_TYPE_PACKED_PIXELS,
965         .visual =       FB_VISUAL_TRUECOLOR,
966         .accel =        FB_ACCEL_NONE,
967 };
968
969 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
970 {
971         struct fb_info *info;
972         struct ps3fb_par *par;
973         int retval;
974         u64 ddr_lpar = 0;
975         u64 lpar_dma_control = 0;
976         u64 lpar_driver_info = 0;
977         u64 lpar_reports = 0;
978         u64 lpar_reports_size = 0;
979         u64 xdr_lpar;
980         struct gpu_driver_info *dinfo;
981         void *fb_start;
982         int status;
983         struct task_struct *task;
984         unsigned long max_ps3fb_size;
985
986         if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
987                 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
988                 return -ENOMEM;
989         }
990
991         retval = ps3_open_hv_device(dev);
992         if (retval) {
993                 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
994                         __func__);
995                 goto err;
996         }
997
998         if (!ps3fb_mode)
999                 ps3fb_mode = ps3av_get_mode();
1000         dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1001
1002         atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1003         atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1004         init_waitqueue_head(&ps3fb.wait_vsync);
1005
1006 #ifdef HEAD_A
1007         status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
1008         if (status) {
1009                 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1010                         __func__, status);
1011                 retval = -ENODEV;
1012                 goto err_close_device;
1013         }
1014 #endif
1015 #ifdef HEAD_B
1016         status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
1017         if (status) {
1018                 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1019                         __func__, status);
1020                 retval = -ENODEV;
1021                 goto err_close_device;
1022         }
1023 #endif
1024
1025         max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1026         if (ps3fb_videomemory.size > max_ps3fb_size) {
1027                 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1028                          max_ps3fb_size);
1029                 ps3fb_videomemory.size = max_ps3fb_size;
1030         }
1031
1032         /* get gpu context handle */
1033         status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1034                                          &ps3fb.memory_handle, &ddr_lpar);
1035         if (status) {
1036                 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1037                         __func__, status);
1038                 goto err_close_device;
1039         }
1040         dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
1041
1042         status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1043                                           &ps3fb.context_handle,
1044                                           &lpar_dma_control, &lpar_driver_info,
1045                                           &lpar_reports, &lpar_reports_size);
1046         if (status) {
1047                 dev_err(&dev->core,
1048                         "%s: lv1_gpu_context_allocate failed: %d\n", __func__,
1049                         status);
1050                 goto err_gpu_memory_free;
1051         }
1052
1053         /* vsync interrupt */
1054         dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1055         if (!dinfo) {
1056                 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1057                 goto err_gpu_context_free;
1058         }
1059
1060         ps3fb.dinfo = dinfo;
1061         dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
1062         dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
1063         dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
1064                 "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
1065                 dinfo->memory_size, dinfo->hardware_channel,
1066                 dinfo->nvcore_frequency/1000000,
1067                 dinfo->memory_frequency/1000000);
1068
1069         if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
1070                 dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
1071                         dinfo->version_driver);
1072                 retval = -EINVAL;
1073                 goto err_iounmap_dinfo;
1074         }
1075
1076         retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
1077                                     &ps3fb.irq_no);
1078         if (retval) {
1079                 dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
1080                         retval);
1081                 goto err_iounmap_dinfo;
1082         }
1083
1084         retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
1085                              IRQF_DISABLED, DEVICE_NAME, &dev->core);
1086         if (retval) {
1087                 dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
1088                         retval);
1089                 goto err_destroy_plug;
1090         }
1091
1092         dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
1093                           (1 << GPU_INTR_STATUS_FLIP_1);
1094
1095         /* Clear memory to prevent kernel info leakage into userspace */
1096         memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1097
1098         xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1099
1100         status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1101                                        xdr_lpar, ps3fb_videomemory.size,
1102                                        CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
1103                                        CBE_IOPTE_M);
1104         if (status) {
1105                 dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
1106                         __func__, status);
1107                 retval =  -ENXIO;
1108                 goto err_free_irq;
1109         }
1110
1111         dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1112                 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1113                 ps3fb_videomemory.size);
1114
1115         status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
1116                                   GPU_CMD_BUF_SIZE, GPU_IOIF);
1117         if (status) {
1118                 dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
1119                         __func__, status);
1120                 retval = -ENXIO;
1121                 goto err_context_unmap;
1122         }
1123
1124         info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1125         if (!info)
1126                 goto err_context_fb_close;
1127
1128         par = info->par;
1129         par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1130         par->new_mode_id = ps3fb_mode;
1131         par->num_frames = 1;
1132
1133         info->fbops = &ps3fb_ops;
1134         info->fix = ps3fb_fix;
1135
1136         /*
1137          * The GPU command buffer is at the start of video memory
1138          * As we don't use the full command buffer, we can put the actual
1139          * frame buffer at offset GPU_FB_START and save some precious XDR
1140          * memory
1141          */
1142         fb_start = ps3fb_videomemory.address + GPU_FB_START;
1143         info->screen_base = (char __force __iomem *)fb_start;
1144         info->fix.smem_start = virt_to_abs(fb_start);
1145         info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1146
1147         info->pseudo_palette = par->pseudo_palette;
1148         info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1149                       FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1150
1151         retval = fb_alloc_cmap(&info->cmap, 256, 0);
1152         if (retval < 0)
1153                 goto err_framebuffer_release;
1154
1155         if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1156                           ARRAY_SIZE(ps3fb_modedb),
1157                           ps3fb_vmode(par->new_mode_id), 32)) {
1158                 retval = -EINVAL;
1159                 goto err_fb_dealloc;
1160         }
1161
1162         fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1163                                  &info->modelist);
1164
1165         retval = register_framebuffer(info);
1166         if (retval < 0)
1167                 goto err_fb_dealloc;
1168
1169         ps3_system_bus_set_drvdata(dev, info);
1170
1171         dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1172                  dev_driver_string(info->dev), dev_name(info->dev),
1173                  info->fix.smem_len >> 10);
1174
1175         task = kthread_run(ps3fbd, info, DEVICE_NAME);
1176         if (IS_ERR(task)) {
1177                 retval = PTR_ERR(task);
1178                 goto err_unregister_framebuffer;
1179         }
1180
1181         ps3fb.task = task;
1182
1183         return 0;
1184
1185 err_unregister_framebuffer:
1186         unregister_framebuffer(info);
1187 err_fb_dealloc:
1188         fb_dealloc_cmap(&info->cmap);
1189 err_framebuffer_release:
1190         framebuffer_release(info);
1191 err_context_fb_close:
1192         lv1_gpu_fb_close(ps3fb.context_handle);
1193 err_context_unmap:
1194         lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1195                               ps3fb_videomemory.size, CBE_IOPTE_M);
1196 err_free_irq:
1197         free_irq(ps3fb.irq_no, &dev->core);
1198 err_destroy_plug:
1199         ps3_irq_plug_destroy(ps3fb.irq_no);
1200 err_iounmap_dinfo:
1201         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1202 err_gpu_context_free:
1203         lv1_gpu_context_free(ps3fb.context_handle);
1204 err_gpu_memory_free:
1205         lv1_gpu_memory_free(ps3fb.memory_handle);
1206 err_close_device:
1207         ps3_close_hv_device(dev);
1208 err:
1209         return retval;
1210 }
1211
1212 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1213 {
1214         struct fb_info *info = ps3_system_bus_get_drvdata(dev);
1215         u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1216
1217         dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1218
1219         atomic_inc(&ps3fb.ext_flip);    /* flip off */
1220         ps3fb.dinfo->irq.mask = 0;
1221
1222         if (ps3fb.task) {
1223                 struct task_struct *task = ps3fb.task;
1224                 ps3fb.task = NULL;
1225                 kthread_stop(task);
1226         }
1227         if (ps3fb.irq_no) {
1228                 free_irq(ps3fb.irq_no, &dev->core);
1229                 ps3_irq_plug_destroy(ps3fb.irq_no);
1230         }
1231         if (info) {
1232                 unregister_framebuffer(info);
1233                 fb_dealloc_cmap(&info->cmap);
1234                 framebuffer_release(info);
1235                 ps3_system_bus_set_drvdata(dev, NULL);
1236         }
1237         iounmap((u8 __force __iomem *)ps3fb.dinfo);
1238         lv1_gpu_fb_close(ps3fb.context_handle);
1239         lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1240                               ps3fb_videomemory.size, CBE_IOPTE_M);
1241         lv1_gpu_context_free(ps3fb.context_handle);
1242         lv1_gpu_memory_free(ps3fb.memory_handle);
1243         ps3_close_hv_device(dev);
1244         dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1245
1246         return 0;
1247 }
1248
1249 static struct ps3_system_bus_driver ps3fb_driver = {
1250         .match_id       = PS3_MATCH_ID_GPU,
1251         .match_sub_id   = PS3_MATCH_SUB_ID_GPU_FB,
1252         .core.name      = DEVICE_NAME,
1253         .core.owner     = THIS_MODULE,
1254         .probe          = ps3fb_probe,
1255         .remove         = ps3fb_shutdown,
1256         .shutdown       = ps3fb_shutdown,
1257 };
1258
1259 static int __init ps3fb_setup(void)
1260 {
1261         char *options;
1262
1263 #ifdef MODULE
1264         return 0;
1265 #endif
1266
1267         if (fb_get_options(DEVICE_NAME, &options))
1268                 return -ENXIO;
1269
1270         if (!options || !*options)
1271                 return 0;
1272
1273         while (1) {
1274                 char *this_opt = strsep(&options, ",");
1275
1276                 if (!this_opt)
1277                         break;
1278                 if (!*this_opt)
1279                         continue;
1280                 if (!strncmp(this_opt, "mode:", 5))
1281                         ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1282                 else
1283                         mode_option = this_opt;
1284         }
1285         return 0;
1286 }
1287
1288 static int __init ps3fb_init(void)
1289 {
1290         if (!ps3fb_videomemory.address ||  ps3fb_setup())
1291                 return -ENXIO;
1292
1293         return ps3_system_bus_driver_register(&ps3fb_driver);
1294 }
1295
1296 static void __exit ps3fb_exit(void)
1297 {
1298         pr_debug(" -> %s:%d\n", __func__, __LINE__);
1299         ps3_system_bus_driver_unregister(&ps3fb_driver);
1300         pr_debug(" <- %s:%d\n", __func__, __LINE__);
1301 }
1302
1303 module_init(ps3fb_init);
1304 module_exit(ps3fb_exit);
1305
1306 MODULE_LICENSE("GPL");
1307 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1308 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1309 MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);